A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A rigid piece of abrasive with or without mounting facilities. Items having such mounting facilities as a fixed spindle, a threaded insert, or an arbor hole are designed for mounting on a grinding machine, tool chuck or mandrel. Items without mounting facilities are designed to be secured in a wheel holder by means of spring clamps.

A shaped piece of synthetic nonconducting abrasive, designed for cleaning and truing up slip ring and commutator surfaces. May be mounted on a nonmetallic handle. Excludes STONE, ELECTRICAL CONTACT BRUSH SEATER.

A shaped piece of synthetic nonconducting abrasive, designed for cleaning and truing up slip ring and commutator surfaces. May be mounted on a nonmetallic handle. Excludes STONE, ELECTRICAL CONTACT BRUSH SEATER.

A shaped piece of synthetic nonconducting abrasive, designed for cleaning and truing up slip ring and commutator surfaces. May be mounted on a nonmetallic handle. Excludes STONE, ELECTRICAL CONTACT BRUSH SEATER.